INTELLIGENT HUB FOR ETHERNET POWERLINK NETWORKS

摘要

The utility model relates to the field of industrial real-time communication systems and can be used in various fields of science and industry to create control devices, distributed input / output systems, electric drives, modular reconfigurable robots. An intelligent hub for Ethernet POWERLINK networks, including several microcircuits, is proposed physical Ethernet layer, the inputs of which are inputs for connecting Ethernet networks to a smart hub for Ethernet POWERLINK networks, and the outputs of physical Ethernet level are connected to Ethernet deserializers, the outputs of which are connected to a priority selector, the data output of which is connected to an Ethernet packet detector POWERLINK and an incoming packet buffer, and also is an output for connecting an external receiver of an intelligent hub for Ethernet POWERLINK networks, while the output of a packet detector Ethernet POWERLINK is connected to the inter-packet gap estimator, to which the output of the active port number of the priority selector is also connected, and the output of the inter-packet interval estimator c is the output of the intelligent hub for Ethernet POWERLINK networks, and the output of the incoming packet buffer is connected to the packet sending unit, the output of which is connected to the outgoing packet selector, the second input of which is connected to the input of the external transmitter of the intelligent hub for Ethernet POWERLINK networks, and the output is connected to the Ethernet serializer whose output is connected to the input of the transmitter signal switch, the second input of which is connected to the output of the active port number of the priority selector, and the outputs are connected to the input physical Ethernet-level microcircuits, the outputs of which are outputs for connecting Ethernet hubs of an intelligent hub for Ethernet POWERLINK networks. A useful model provides a delay of relaying Ethernet POWERLINK packets of no more than 2 μs, the ability to build functioning Ethernet POWERLINK networks with topologies that include ring connections and redundant connections between useful models, and the ability to automatically determine the current Ethernet POWERLINK network topology.